Test your outlet is correctly grounded before using your EarthShield products with this grounding outlet tester.

Plug the tester into your outlet and watch for the pattern in the lights (the center and right lights come on when wired correctly).

Then plug your adapter into the ground port of your outlet.

EarthShield grounding adapters are custom-made and have a built-in 10,000 Ohm safety resistor suited for grounding (in addition to the safety resistor that is fitted inside of our EarthShield cords).

They have two inputs so that you can connect two products or one product and a testing multimeter to your EarthShield grounding adapter.